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防治青少年近视首先要明确一个问题:什么是近视?通俗来讲,需要离看的东西近才能看清楚,我们一般称之为近视。实际上,在眼科来讲,对病人视力的检查包括近视力和远视力。无论是我们平常所说的近视还是远视,都属于远视力的改变,也就是说眼睛看远距离的物体时出现了问题。如果各种原因造成远距离的物体在眼睛里面形成的清晰图像落在了眼睛接受图像的器官——视网膜的后面,就形成了近视。
Prevention and treatment of juvenile myopia should first clear a problem: What is myopia? In general terms, need to see things can see only recently, we generally call it myopia. In fact, ophthalmology, the examination of patients with vision, including near vision and far vision. Whether we usually say myopia or hyperopia, all belong to the change of far vision, that is to say when the eyes look at the objects in the distance there is a problem. If, for various reasons, a sharp image of a distant object in the eye falls behind the retina receiving the image of the eye, myopia is formed.